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author | Roland McGrath <roland@gnu.org> | 2005-07-03 04:40:34 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 2005-07-03 04:40:34 +0000 |
commit | 88e3fbcb5d6829f8980d6bb356b1c0cd7a38187b (patch) | |
tree | 41b73f55c91439f87d82e5d32b9d8e46e82ce3c1 /linuxthreads/sysdeps/hppa | |
parent | d19b1b4f2ff49e085b55e8564b52ca17b028e335 (diff) | |
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linuxthreads, linuxthreads_db: Directories removed (preserved in ports repository).
Diffstat (limited to 'linuxthreads/sysdeps/hppa')
-rw-r--r-- | linuxthreads/sysdeps/hppa/pspinlock.c | 81 | ||||
-rw-r--r-- | linuxthreads/sysdeps/hppa/pt-machine.h | 62 |
2 files changed, 0 insertions, 143 deletions
diff --git a/linuxthreads/sysdeps/hppa/pspinlock.c b/linuxthreads/sysdeps/hppa/pspinlock.c deleted file mode 100644 index 7f481fa4b6..0000000000 --- a/linuxthreads/sysdeps/hppa/pspinlock.c +++ /dev/null @@ -1,81 +0,0 @@ -/* POSIX spinlock implementation. hppa version. - Copyright (C) 2000 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - unsigned int val; - - do - asm volatile ("ldcw %1,%0" - : "=r" (val), "=m" (*lock) - : "m" (*lock)); - while (!val); - - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - unsigned int val; - - asm volatile ("ldcw %1,%0" - : "=r" (val), "=m" (*lock) - : "m" (*lock)); - - return val ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - *lock = 1; - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 1; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/linuxthreads/sysdeps/hppa/pt-machine.h b/linuxthreads/sysdeps/hppa/pt-machine.h deleted file mode 100644 index abc25c4ca4..0000000000 --- a/linuxthreads/sysdeps/hppa/pt-machine.h +++ /dev/null @@ -1,62 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - hppa version. - Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Richard Henderson <rth@tamu.edu>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#include <bits/initspin.h> - -#ifndef PT_EI -# define PT_EI extern inline __attribute__ ((always_inline)) -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("%r30"); - - -/* The hppa only has one atomic read and modify memory operation, - load and clear, so hppa spinlocks must use zero to signify that - someone is holding the lock. */ - -#define xstr(s) str(s) -#define str(s) #s -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - int ret; - - __asm__ __volatile__( - "ldcw 0(%2),%0" - : "=r"(ret), "=m"(*spinlock) - : "r"(spinlock)); - - return ret == 0; -} -#undef str -#undef xstr - -#endif /* pt-machine.h */ |